(1) Short for
transactions per second, a
measurement used to determine how many transactions have been processed in one
second in transaction-oriented systems.
(2) Short for Transaction Process System
it is a type of information system (IS) that collects,
stores, modifies and retrieves transaction of an organization. Here the word
transaction is used to mean any event that generates or modifies data stored in
the IS. For example batch processing is an example of TPS.